Wrench.



D. O'CONNOR.

WRENCH.

APPLICATION mm JAN. 1. 191a.

Patented Dec. 24, 1918.

2 SHEE TSSHEET Inventor: Den/'5 OC'onnor.

r Per J Zlfiinesses.

D. O'CONNOR.

WRENCH. APPLICATION FILED mu. 7 I916- L288,969, Patented Dec. 24, 1918.

2 SHEETS-SHEET 2- i 9 Llbl/ll nesses I mren tot. NW A4 Den/'5 OC 0/1/10! an rams ANT TEE.

DENIS OCONNOR, OF JOIJIET, ILLINOIS, ASSIGNOR 0F FIVE-SIXTHS T0 ARTHUR M. SGHUSTER AND JOHN P. SCI-L'USTER, OF JULIET, ILLINOIS.

WRENCH.

To all whom it may concern.

Be it known that 1, Denis OCoNNon, a subject of Great Britain, and resident of Joliet, l/Vill county, Illinois, have invented a certain new and useful Improvement in set at any point Within the limits of the *oapacity of the wrench, and combine therewith an automatically operated adjusting means whereby the jaw is capable of consid erable movement beyond its manually adjusted position, whereby the wrench is made capable of use 'on't'wo or three sizes "of pipe without readjustment of the manually e'rable nut.

- With this object in vie s, avenues consists in certain novel features of constructlon herelnafter described and shown I in the accompan ing drawings, in which Figure 1, 1s a side v1ew,'1n perspective, with parts broken away, showing'niy improved construction. Fig. 2, is a perspective view of the movable jaw. Fig.3, is aperspeetive viewof the fixed jaw. Fig; 1, is a bottom "view, in perspective, of a flanged bearing member. Fig. 5,- is a perspective view of the hollow body portion and handle of my improved wrench.

In the drawings, in which similar refer- "ence characters refer to similar parts throughout the several views, I have illustrated the preferred embodiment of my invention and show same as consisting of the main body portion 6, the fixed jaw 7, the pivoted or movable jaw 8, the adjusting nut 9, and the flanged pivot bearings 10.

The body portion 6, is provided with the handle 11, and may be made in the form of a hollow steel or malleable casting as shown in Fig. 1, or may be forged from plate steel as shown in Fig. 5. The fixed jaw 7, is removably secured to the upper end of the body portion by the screws 12, which may be made to pass loosely through one wall "of the body portion and through the openings 7 in the shank 7 of the jaw and screw threaded into the opposite wall of the body. The upper edge of the body walls may, as shown in Fig. 1, be recessed as at 6 to receive the flanges 7 of the jaw, forming a means of further securing or anchoring the jaw in place.

Specification of Letters Patent.

Patented Dec. 24, 1918.

Application filed January 7, 1916. Serial No. 70,711.

The movable jaw 8, is provided with the shank 1'3, 'extending at a right angle to the -serrated face 14, and is passed through the opening 15, which opening is bounded by proved Wrench. This consists in providing the may 6,-'withjthe spellin s 16, which with the peripheral slots 17, are in register with each other. Fitted-in these openings are the flanged pivot bearing members 10, on

on each side 'of the body with the hub portion 18, enterin and snugly engaging theopening and the flanges over-lapping the sides of the body. These bearings are held in position by the screws 19, which pass loosely through the flanges or one bearing and through the slots 17, and are screw threaded into the flange of the other bearing. They are not clamped against movement relative to the body, but are free torotate or oscillate to an extent as limited by the slots 17.

Loosely caged between the bearings 10, is the knurled cylindrical or barrel-shaped adjusting nut t, with its sides exposed through the o enings 20. in the bearings whereb it may b manuan revolved in veither direction. The edges of the opening adjacent the periphery of the nut are beveled, approximating the contour of the cylindrical surface of the nut, while the edges of these openings adjacent the ends of the nut are square, affording a solid, unyielding surface to resist the thrust of the nut when the wrench is in heavy duty. It will be observed that these end walls of the openings have a width equal to the thickness of the flangeand the hub porti0ns18, as shown at 21. The adjusting nut is threaded to engage the threaded surfaces 22, of the shank 13, whereby the jaws can be adjusted to the limits of the wrenchs capacity.

From the foregoing it will be seen that the movable jaw is free to oscillate a "distance as limited by the length of the opening 1.5, and that the flanged bearing members 10,

' rotate with the shank of the jaw and the ad justing nut 9, on the hub portions 18, which contact with the square end of the openings 20, the thrust or strain fromthe jaw shank is transmitted directly to the hub portion of the bearings 10, and by them to the body of the wrench. When .ball or spherical shaped adjusting nutsare used the pulling strains of the shank tend to wedge the ball between the Walls of the body, spreading them to their final'destr uctiombut by theme of the barrelshaped nut the strains are resisted withoutthe least liability of injury to the body,

' When in, normal. position, the serratedfaces ofthe jaws are parallel and the shank 13, isatan angle to the wrench handle, and with the jaws adjusted by manipulating'the nut 9, to properly grasp a pipe, a further automatic adjustmentvof considerable extent is possible through the oscillations of the movable jaw on its pivot; This automatic adjustment is of importance-in that the wrench is. capable of useon two or'three sizes of pipe or willgrasp a pipe and its-attached fittings withoutreadjustment of the nut.

To positively return the movable jaw 8, to

normal position after having been oscillated on, its pivot, I provide the spring 25, one end of aflixed to one of the walls of the hollow body,

while the other end, which is provided with v the roller'27, bears against the rear of the shank with the roller engaging the groove 28, milled through-the threaded surface 22. The roller 27 issecured to the spring by ha ving the end of the spring extend throughv I the hub of the roller. Causing the'spring ,-ing,nut. It will ,be 'observedthat the tworotatable to bear against the shank above its pivotal connection with the body, its efliciency is unimpaired regardless of the relative posi-v tion of the end of the shank and the adj ustdisks 10 together with the connecting pins 13 form virtuallv ,-a unitary structure, since thepins cause the disks to rotate togethen' I In this way, it will be observed that abroad,

substantial and durable bearing for the nut is provided. ,7 7 7.

What I claim as new is, 1 1. In a wrench, ahandle, a hollow body which is coiled about the post-26 portion having circular holes whose edges are notched, a movable jaw provided with a shank arranged lengthwise within said body portion, a substantially barrel-shaped ad- 7 openings adapted to expose the sides of said adjusting member for manual engagement,

and pins extending through the hollow body portion and connecting said bearing-them;

bers, these pins being in engagement with said notches, for the purpose set forth.

- 2. Ina wrench of the class set forth, a hol low body having a handle atone end and a stationary jaw at the other. end, this latter end being provided with an opening in its end wall and the walls of the body being,

provided with coincident circular holes, a

movable jaw having a threaded shank ex tending into said openingimtheendwall of the body, a manually, operable nutonsaid shank, and a bearing for. said nut consisting of a pair of disks rotatably fitting insaid circular holes in the body walls, said disks having annular flanges fitting against-the,

outer face of the hollow body, and means extending through the'body to connect said diskstocause them to rotate together as a single structure; I In a wrench, a hollow body portion, a

jaw removably fixed to the upper end of said body portion, a movable aw normally in parallelism with said fixed jaw provided witha shank arranged lengthwise within said body portion, a barrel-shaped adjusting-v member having a threadedopening 'longitudinally thereof to receive said shank adaptedto adjust'said jaw to and from said body,

portion, coinciding openings in the. sidesof, I I

said body portion, flanged bearing members provided with hub portions mounted in said openings" for a limited oscillating movement, adapted'to rotatively support-said adjusting member, whereby said movable jaw may move considerably out of parallelism with said fixed jaw, aspring secured to said body portion provided witha roller atits free end adapted to bear against the rear side ofsaid shank at a point between its pivotal connection with the body and. the movable jaw,

whereby the jaws are maintained in and re.-

turned to their normal position at anypoint of adjustment of'the movable aw relative to r the ,bodv'portion.

Y Signedbyme at Joliet, Illinois, I

I nENrs oooNNoa. f

' I Copies ofthis patent may be obtained for nve cents each. by addressingthe Commissioner of Patents, 1

i v i washingtnn,1).0. 

